Ramp interview questions

I had to complete a 3 question video interview, I am very well spoken and can be very empathetic. However, not having anyone to speak with and not having a genuine conversation with a human being does not convey that at all. Ramp wants you to have the conversational skills to have great customer service and to demonstrate those skills but not have a genuine conversation with a human being but rather a one-sided conversation with an imaginary customer. Instead of being able have a normal conversation and interact with a person, I fail based on being nervous of messing up a video interview. I'm ok with speaking with people but the video interview made me very nervous in fear of messing up. I am more than qualified for the position and was employed for a similar job previously but couldn't pass the video interview, therefore ruined my chance.